他虽然只有20岁，课到过中国所有的城市的翻译：He was only 20 years old, to all of China's cities 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Although he was only 20 years old, all the lessons to China's cities

He was only 20 years old, to all of China's cities

Although he only then 20 years old, the class has been to Chinese all cities

Although he was only 20 years old, taught all the cities had been to China

He was only 20 years old, to all of China's cities